August scheoedee



(m Model.) v l A! SGHROEDER.

VOLTAIG PILE.

No. 296,464. Patented Apr. 8, 1884.

W /IZ 6,1

UNITED STATES PATENT OFFICE,

AUGUST SOHR-OEDER, OF STETTIN, GERMAKY.

voLTAlc PILE.

SPECIFICATION forming part of Letters Patent No. 296,464, dated April 8, 1884.

Application filed September 29, 1883. (No model) To all whom it may concern.-

Be it known that 1, AUGUST SoHRoEnnR, a subject of the Emperor of Germany, residing at Stettin, in the Empire of Germany, have invented certain new and useful Improvements in Voltaic Piles; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, wherein Figure 1 is a side view of the pile; Fig. 2, a vertical section, and Fig. 3 a' bottom view of the same.

The object of my invention is to construct a voltaic pile in such manner that a very distributed electric current may be imparted to any object simply by putting the pile upon this object. The positive and the negative electrodes of the pile are formed in the usual way by platesa a'"' b of those metals or other substances which are generally employed for this purpose. These plates are soldered together two by two, as also well known. They may have any desired shape, but are all entirely flat, with the exception of the top plate, a, and the bottom plate, b, of the pile. The latter is provided with downwardly-extending pins or projections b, which may he covered, when the pile is to be used, with plates of flannel, so that only the extremities of the projecplate, a, the india-rubber tubed is interposed.

The pile is put upon the object to which electricity is to be communicated, and a very distributed current will immediately be active between the projections b and the teeth a, and pass to the object to which the pile is applied.

What I claim is In avoltaic pile, the combination of the bottom plate, b, provided with downwardly-extending projections b, with the top plate, a, the

downwardly-projecting part a" of which surrounds all the other plates, and comes with its teeth a in thelevel of the projections b, as described, and for the purpose set forth.

In testimony whereof I have hereto set my 5 5 hand this 4th day of September, A. D. 1883.

AUGUST SOHROEDER.

\Vitnesses:

FRANZ FANTKE, MILFORD RAU. 

